By: Cameron Bornholm, Angela Jenkins, and Cherelle Waters

1
Reagent Quality and Reagent Grade

• By Cameron Bornholm, Angela Jenkins, and
  Cherelle Waters

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Table of Contents

• I. What is a reagent
• II. Grades of reagents
• III. Reagent labels
• IV. Containers
• V. MSDS
• VI. Reagents at Kennesaw

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• What is a reagent?

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• A reagent is a test substance or compound that is
  added to a system in order to bring about a
  reaction or to see whether a reaction will occur.

5

• A reagent-grade describes chemical substances
  of sufficient purity for use in chemical
  analysis, chemical reactions, or physical testing.

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• Grades of Reagents

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• There are eight different categories of chemical
  grades
• General
• Acids
• High-Pressure Liquid Chromatography
• and Spectrophotometry
• Multiple Application Solvent
• Pesticide and Residue
• Standard Solutions
• Bio Tech Applications
• Miscellaneous

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General Grades of Chemicals

• Reagent A.C.S.
• Guaranteed Reagent (GR)
• AR
• Primary Standard
• Reagent
• OR
• Purified
• Practical

• Lab Grade
• USP
• USP/GenAR
• NF
• FCC
• CP (Chemically Pure)
• Technical

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Acids

• OmniTrace Grade Acids
• Tracemetal
• Tracemetal Plus
• Suprapur Grade Acids
• AR Select
• AR Select Plus
• Environmental Grade
• Environmental Grade Plus

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High Pressure Liquid Chromotagraphy
Spectrophotometry

• OmniSolv HPLC Grade Solvents
• HPLC/Spectro
• ChromAR
• SpectrAR

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Multiple Application Solvents

• OmniSolv Grade Solvents
• Absolv
• UltimAR
• Accusolv

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Pesticide and Residue

• HR-GC OmniSolv Grade Solvents
• Nanograde
• Residue Grade Solvents

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Standard Solutions

• Standardized
• StandARd
• Acculute

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Bio Tech Applications

• OmniSolv Biosynthesis
• GenAR
• Accugen
• BIO
• Anhydrosolv
• DriSolv

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Miscellaneous

• ScintillAR
• SilicAR
• Accutint

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Lab Chemical Safety

• DO
• Use the appropriate size container for the job.
• Get help when needed.
• Clean containers after use with deionized water.
• Work under a fume hood unless you have been told
  otherwise by the lab manager/supervisor.
• Use a funnel when pouring chemicals into a small
  container.
• Open bottles slowly to avoid spilling and allow
  vapors to escape.
• Know what type of reactions to expect.
• Remember to triple-A (AAA) Always Add Acid to
  water.

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• DON'T
• Reuse containers (adverse chemical reaction may
  occur).
• Eat, drink, smoke, or touch any body part before
  washing your hands when working with chemicals.
• Be afraid to ask questions.
• Pour leftover chemicals back in its source
  container, contamination may result.
• Put your face close to the bottle when pouring.
• Puncture cap or lid of any bottle.

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Reagent Labels

• All solution labels meet all ISO, DOT and OSHA
  regulations and include the following
  information
• Expiration Date
• Date of Manufacture
• Standard Reference Material used
• Actual Lot Analysis
• Space for date received and date opened
• NFPA diamond

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Example of a Reagent Label
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Reagent Containers

• Below are so of the containers used for reagents
• 4L Amber Glass Bottle
• Plastic Bottle and
  Jug
• 10 L Plastic Container
• 1 gallon F Can

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• Rieke Can
• Hed-Pak
• 
  Carton with Liner
• 
  Cubitainer

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Material Safety Data Sheet (MSDS)

• These sheets contain all the pertinent
  information for the reagent. These must be kept
  in the lab where the reagent is stored.
• Material Safety Data Sheet (MSDS)

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OSHA

• OSHA began requiring MSDS's for hazardous
  materials effective May 26, 1986.
• OSHA is responsible for the Hazard Communication
  Standard 29 CFR 1910.1200.
• "to ensure that the hazards of all chemicals
  produced or imported are evaluated, and that
  information concerning their hazards is
  transmitted to employers and employees. This
  transmittal of information is to be accomplished
  by means of comprehensive hazard communication
  programs, which are to include container labeling
  and other forms of warning, material safety data
  sheets and employee training."
• The Hazard Communication Standard (HCS) specifies
  the required elements that must be on an MSDS
  among other important data.

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American Society for Testing and Materials
(ASTM), is an international standards
organization that develops and publishes
voluntary consensus technical standards for a
wide range of materials, products, systems, and
services.
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Fisher Scientific
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Fisher Scientific
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Reagents at Kennesaw

• All reagents, etc. are ordered through a unified
  software system.
• The reagent is bar coded and tracked through the
  system to its storage location.
• Expiration dates are automated through the system
  and alert the user that these particular items
  need to be checked.
• The grade ordered depends on the application.
• High grades are normally ordered in just the
  quantity needed because of high cost.

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References

• http//www.ilpi.com/msds/
• http//www.astm.org/index.shtml
• http//www.fishersci.com/wps/portal/CMSTATIC?href
  index.jspstoreScientificsegmentlifeScience
• http//www.osha.gov/
• http//www.reagents.com/products/reagents/grades.h
  tml